Method for use in connection with the wrapping of food



mould on suc Patented June 135 1933 imi'rso STATES PATENT orrics cam: s. EY, or mrw roan, n. Y.- men I'OB can in commoner wrzrn ran wmrme or soon H0 Drawing.

This invention relates v to an improved method to be employed in connection with the wrapping of food products, more particularly bakery productssuch as breads, cakes, etc., and has for one of its objects the provision of a method or rocesswhereby the owth of li products is retarde and to a large extent prevented and whereby the freshness of the food will be preserved.

In the baking of breads, for example, on

a commercial scale it is customer to remove the loaves from the oven and al ow them i to stand in the open for from one to three hours until cooled before being' wrapped. During this riod bacteria and mould spores which may h: carried by the dust particles in the room become deposited on the loaves sothat-when the loaf is wrapped the bacteria and mould spores are wrapped a'lspi ggllildl e gro 0 ese tions are then ideal for t bacteria and of the mould, with the result that a loaf wrapped under such conditions will remain fresh for only a short period due to the action of the bacteria and soon becomes mouldy due to the growth of the mould spores.

The resent invention rovides a method to be used P in connection with the wrapping of bake products, such as those above mention whereby these conditions are eliminated.

Briefly, my invention consists in apgilimg or bringing into contact with the a cry product to be wra god material which inibits the. growth 0 acteria and mould. p More specificall the present invention provides a method .wh between the wra per and the loaf being treated a materia such as that above note to wit, material which inhibits the growth of bacteria within the loaf and the growth of the mould spores on the loaf.

Still more specifically the present invention consists in liberatmgoxygen in contact with the food being wrapped.- This -may be efl'ected invarious ways for example, by the use of hydrogen peroxi e which may be sprayed or otherwise applied to the loaf just prior to or while wrapping or'to the wrapper itself. Or the loaf may be erein I enclose or confine do. to an Application filed July 24, 1980. Serial No. 470,648.

wrapped in an atmosphere of such material, it being understood that the wrapper em-' ployed for the loaf is a waxed paper or other imperforate material capable of loss of the liberated active substance.

My method may also be practiced by produc ng an electrical discharge in the air surrounding the material being wrap produce ozone either just prior to or 5 the wrappir operation.

, I have obtained excellent results employing a v solution of hydrogen peroxide which was sprayed on the inside of a waxed paper wrapperwhile the paper was being fed to J the wrapping machine.

I have been unable to find that there is any [detrimental effect on the loaf so far as its appearance and edibilit are concerned, inasmuch as the end prorliicts resulting from the practice of my invention oxygen and sterile water.

I find also that in the use of'the resent invention the loaf can be wrapped otter and sooner after its removal from the oven than 75 imperforate wrap r having a cellulose base. 3. The process ftreating anified products 1 of the type of bread an cake, which process comprises applying hydrogen perox-' imperforate wrapper having a cellulose base temperature and atmospheric pressure about the freshly baked food product.

This specification signed ui see di ai cam. s. HAMERSLEY.

July, 1930.

preventing d to urmg 6a are simply a of vbread and cake, which and sealing this wrapper at room 

